高等学校化学学报 ›› 1982, Vol. 3 ›› Issue (2): 264-270.

• 论文 • 上一篇    下一篇

冠醚对生物化学影响的研究(Ⅲ)——五种冠醚化合物对小麦幼苗根系吸收与运转42K、24Na、45Ca离子的影响

周爱堂1, 傅庭治1, 欧惠春1, 黄德培2, 王德粉2, 张进其2, 黄良保2, 阙如生3, 张正仁3   

  1. 1. 南京大学生物系;
    2. 南京大学化学系配位化学研究所;
    3. 南京大学大米草及海滩开发研究所
  • 收稿日期:1981-01-21 出版日期:1982-04-24 发布日期:1982-04-24

STUDIES ON THE BIOCHEMICAL EFFECTS OF CROWN ETHERS (Ⅲ)——THE EFFECTS OF FIVE CROWN ETHER DYES ON THE TRANSPORT OF ISOTOPES K+, Na+ AND Ca++ IN WHEAT ROOTS

Zhou Aitang1, Fu Tingzhi1, Ou Huichun1, Huang Depei2, Wang Defen2, Zhang Jinqi2, Huang Liangbao2, Que Rusheng3, Zhang Zhengren3   

  1. 1. Department of Biology, Nanjing University, Nanjing;
    2. Coordination Chemistry Institute, Nanjing University, Nanjing;
    3. Institute of Spartina Anglica and Tidal land Development, Nanjing University Nanjing
  • Received:1981-01-21 Online:1982-04-24 Published:1982-04-24

摘要: 本文用放射性同位素42K、24Na、45Ca作示踪,配以PK、PNa离子选择电极测量溶液的电导率和电位变化。研究五种冠醚化合物对南大八号小麦幼苗根系吸收与运转无机离子(K+、Na+、Ca)的作用。实验结果表明,五种冠醚化合物对小麦幼苗根系具有不同程度的促进吸收和加速运转K+、Na+、Ca的作用,其中以1号冠醚化合物作用最为明显,在K+、Na+、Ca+艹>中对K+的作用最为突出。

Abstract: The ion-selective electrode and isotope tracing technique arc applied in this study of metal ion transport in plant roots. The transport process in living plants can be followed continuously.With isotope tracing and ion-selective electrode technique, the influence of five crown ether dyes on transport process of the K+, Na+ and Ca++ in wheat root system was studied.Preliminary investigation indicated that five crown ether dyes in very low concentrations (1×10-3M) promoted the transport of potassium ion; on the other hand, the effect of 5 crown ethers on the absorption of sodium and calcium ion by wheat root system was irregular, some absorbed more and some less than the control group. The 4-(N, N-dimethyl-amino-benzene) -1- azo-4-benzo-15-crown-5 was the most effective among the five crown ether dyes.When the root system of single, young wheat was treated with dilute solution of a crown ether dye, 4-(N, N-dimethyl-amino-benzene)-l-azo-4-benzo-15-crown-5, the dye penetrated through the cell membranes of the roots and was absorbed on the sufaqe of micelles.